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Scientists Playing God are Building Human DNA From the Ground Up

Scientists Playing God are Building Human DNA From the Ground Up

Yahoo11 hours ago

Biological science has made such astonishing leaps in the last few decades, such as precise gene editing, that scientists are now tackling the next logical — yet inherently controversial — step: fabricating human DNA from the ground up.
Details are a bit vague, but a team of scientists in the United Kingdom have embarked on a new project to construct what they describe in a statement as the "first synthetic human chromosome."
The scientists hope that the five-year Synthetic Human Genome project will result in better understanding of the essential building blocks that make human life possible and find clues to cure diseases and debilitating genetic conditions — so it's not like they are trying to make life from nothing like God, a well-used plot line in lots of science fiction movies.
"The ability to synthesize large genomes, including genomes for human cells, may transform our understanding of genome biology and profoundly alter the horizons of biotechnology and medicine," said Jason Chin, a biology professor at Oxford University and one of the project leads.
The medical non-profit, Wellcome Trust, is kicking in an initial $13.7 million for the project, which builds on the successfully completed project to map the entire human genome, which Wellcome also funded, according to the BBC.
Making synthetic genomes isn't an entirely novel endeavor. Back in 2010, scientists managed to make from scratch the whole genome of a simple bacterium, and then plugged its genetic material inside an empty cell of another bacterium, making something entirely new that they cleverly dubbed Synthia. Scientists have also synthesized viral and yeast cells in other research.
But a human genome is an entirely different proposition. For one thing, it involves a vastly more complex organism than some bacteria. And two, ethical concerns abound. Any whiff of messing around with human DNA has the stink of designer babies and eugenics.
Because of these concerns, the project has a social research component.
"Over the next five years, the team will undertake a transdisciplinary and transcultural investigation into the socio-ethical, economic, and policy implications of synthesising human genomes," the statement on the research reads.
That sentence does feel a bit vague — so we'll be closely watching this project to see how it plays out in more concrete terms.
At the end of the five years, the project leaders hope they'll have a finished human chromosome. That will be a huge step for biological progress — but there will no doubt be many ethical questions to unpack. Starting with: what's the meaning of life, if we can make it ourselves?
More on DNA: You Can Now Buy a Sample of Ozzy Osbourne's DNA in Twelve Easy Payments

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ESHRE 41st Annual Meeting: Older paternal age linked to higher miscarriage risk and lower live birth rates in donor egg IVF cycles
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ESHRE 41st Annual Meeting: Older paternal age linked to higher miscarriage risk and lower live birth rates in donor egg IVF cycles

A new international study presented today at the 41st Annual Meeting of the European Society of Human Reproduction and Embryology (ESHRE) reveals that IVF cycles involving male partners over the age of 45 carry significantly increased miscarriage risks and lower live birth rates – even when young donor eggs are used. PARIS, June 29, 2025 /PRNewswire/ -- By isolating paternal age from female reproductive factors through the exclusive use of donor eggs from young women, the study provides robust evidence that male age plays a critical role in reproductive success, challenging the common assumption that sperm age has little impact once fertilisation occurs. The retrospective study analysed 1,712 first oocyte donation cycles conducted between 2019 and 2023 across six IVF centres in Italy and Spain. All cycles used fresh donor oocytes and frozen sperm from male partners, with only the first single blastocyst transfer included. Female recipients had a mean age of 43.3 years. Participants were divided into two groups: men aged 45 or younger (n=1,066) and those over 45 (n=646). While fertilisation rates and embryo development were comparable between groups, significant differences emerged in clinical outcomes. Miscarriage rates were notably higher among couples where the male partner was over 45, reaching 23.8% compared to 16.3% in the younger paternal age group. Similarly, live birth rates were significantly lower in the older paternal age group, at 35.1% versus 41% for men aged 45 or younger. Discussing the findings, Dr. Maria Cristina Guglielmo, Embryologist at Eugin Italy, said, 'Traditionally, maternal age has been the central focus in reproductive medicine, but our results show that the age of the male partner also plays a crucial and independent role. Even when using eggs from young, healthy donors and transferring only a single, high-quality embryo, we observed poorer outcomes in men over 45.' She also emphasised the importance of examining how paternal age affects the health of offspring. 'There is growing evidence linking advanced paternal age to an increased risk of neurodevelopment disorders in children. Our future work will investigate the long-term health and developmental outcomes of children conceived through donor egg cycles with older fathers, where maternal factors are minimised, to isolate paternal effects more clearly.' The study abstract will be published today in Human Reproduction, one of the world's leading reproductive medicine journals. View original content: SOURCE 41st Annual Meeting of the European Society of Human Reproduction and Embryology (ESHRE)

This Simple Dietary Switch Could Be a Game-Changer for Women With Diabetes, Endocrinologists Say
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This Simple Dietary Switch Could Be a Game-Changer for Women With Diabetes, Endocrinologists Say

This Simple Dietary Switch Could Be a Game-Changer for Women With Diabetes, Endocrinologists Say originally appeared on Parade. A major breakthrough in research revealed how certain dietary choices may impact women with type 2 diabetes—and it shows that changing your habits can potentially lead to greater weight loss and even the possibility of long-term remission from the new study, conducted at the University of Nottingham, School of Life Sciences, showed that one habit specifically can give women with diabetes a huge boost in their insulin resistance, sustained weight loss and even their triglycerides (AKA cholesterol, which is great news not just for metabolic health, but also heart health).So, what was the swap and how did it work? An endocrinologist and diabetes specialist explain the study, the healthy diet swap and why it's a great move, not just for women with diabetes, but possibly for everyone.🩺SIGN UP for tips to stay healthy & fit with the top moves, clean eats, health trends & more delivered right to your inbox twice a week💊 Believe it or not, switching beverages from diet soda to water may make a huge difference for women with type 2 observed 81 women with type 2 diabetes who were overweight or had obesity over 18 months in a weight management program. The women regularly drank diet soda. The participants were randomly chosen to either keep up with their diet soda intake five times per week after lunch or to swap it out for water. The weight loss program lasted six months, while the weight management program lasted a full year. 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It's a small change with the potential for a big impact on long-term health outcomes." Related: Experts agreed that switching from diet drinks to water has a lot of benefits, but that some of the downsides to diet soda might not all because of the diet drinks themselves, but because of the behaviors associated with drinking them. "Water is metabolically neutral, additive-free, and behaviorally aligned with healthier routines. Diet sodas are often consumed alongside calorie-dense, highly processed meals, whereas water tends to be paired with healthier behaviors such as physical activity," Montefiore Einstein diabetes specialist , tells Parade. "For example, very few people reach for a diet soda after a walk or workout. This behavioral context may influence clinical outcomes. This study also found that those in the water group showed better results in BMI, fasting glucose, insulin levels and triglycerides." 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Torres, Ph.D., NP This Simple Dietary Switch Could Be a Game-Changer for Women With Diabetes, Endocrinologists Say first appeared on Parade on Jun 29, 2025 This story was originally reported by Parade on Jun 29, 2025, where it first appeared.

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